Container



July 14, 1936. -r 2,047,891

CONTAINER Filed Aug. 22, 1935 Patented July 14, 1936 UNITED STATESPATENT OFFICE CONTAINER Henry '1'. Scott, Toledo. Ohio,

American Paper Bottle a corporation of Ohio alllgnor to The company,Toledo, Ohio,

" Application August 22, 1933, Serial No. 686,300

13 Claims. (cl. 229-37) "the paraffin to seal the joint. A wire stapleor stitching is employed to retain the lapped closure parts againstseparation.

As heretofore made, the top portions of the bottle where the closure iseiIected have been so formed that when folded and stitched together theywould measure the exact or substantially the exact distance separatingthe side walls of the bottle except as to the closing rib which stood upvertically from the top portions. As the rib was heated for sealing andheld together for stitching, it was necessarily held down close to theplane of the top of the side walls of the bottle, the sealing thustaking place with the rib in that position. Then when the pressure wasreleased, the inherent elasticity of the materialoi the top portionswould cause them to push upwardly and thus separate the connected partsof the rib, thereby breaking the seal and causing the bottle to leak atthe closure.

It is an object oi the present invention to overcome this defect and toso form the bottle that the seal will remain unbroken and that the topportions and the closure parts will be less easily changed in shape orposition in the handling of the bottle after sealing.

It is another object of the invention to so form the top portions of thebottle that in closed position they will be trussed to retain themagainst relative movement that would cause a breaking oi the seal.

It is another object 01' the invention to so form the top portions ofthe bottle and so interconnect them that opposite top portions will formtruss constructions and that these trusses will support each other toform a particularly strong closed end.

It is another object of the invention to so form the end closure of thebottle or container that the folded-in portions will act as a truss toposition the closure to bulge definitely.

It is another object of the invention to so form the end closure oi thebottle or container that portions of the closure will definitely spacethe closing rib outwardly from the container body.

Other objects of the invention will appear from the followingdescription taken in connection with the drawing, which tion and inwhich:

forms a part of this specifica- Flgure 1 shows a blank from which thecon 5 tainer of this invention may be formed;

Figure 2 shows a completely formed, closed.

and sealed container made from such a blank this view beingsubstantially twice the size of the blank in Figure 1;

Figure 3 is a side view 01' container shown in Figure Figure 4 is asection 5; and

Figure 5 is a section on 10 the upper part of the 2; on the line 4-4 ofFigure the line 5-5 of Plgdrawing, i represents the the container orbottle is comprises four side walls 2 lines 3 upon which the blank 20 isbent into the form of a tube of square or rectangular cross-section. Aflap 4 at one end of the blank Joins two The bottom 01' small flaps 5and two being folded on the meeting edges as by gluing. the tube may beclosed by two larger flaps 6, these flaps score lines I and glued toeach other to form a three-ply bottom closure.

The top of the side walls is defined by the score lines I, and aboveeach of these portions i0 is a portion ii for than the which mined,

these score lines are the top closure portions of the containe tangulartop portion 9 extending end of each of two opposite side There is areci'rom the upper walls 2. Beyond and defined by score lines forming aclosing rib, and

The combined exportions 9 is greater distance separating the side wallsfrom they extend, this distance being deterof course, by the width ofthe other two side walls of the container.

40 In the form shown,

the container is square in cross-section so that all side walls are ofthe same width.

or width of the top By this greater extent portions 9, as abovedescribed, a truss is formed when these portions are folded on the scorelines I to bring their free edges together. two slanting sides as ends,and no reasonable (at the score lines iii) In other words, theseportions 9 form a peaked roof with gable Pressure at the top of the peakcan collapse the roof because of the truss thus formed.

Forming a further portions 9 are the two tend from the tops of trusssupport for the top portions it which exthe other two side walls 2.

The top portions I4 are joined at their ends by score lines I5 to theportions 9. Diagonal score lines I6 for each of the portions I4 permitthem to fold inwardly as the portions 9 are folded to effect a closureof the container. These portions It, or at least their middle zones, arealso of greater. combined extent, or .width than the-distance separatingthe side walls to which they are attached, and the diagonal score linesI6 form less than forty-five degree angles, res ectively, with the scorelines I5 so that when the portions I4 are folded inwardly, their pointsI! meet adjacent the center of the base of the rib portion II, which issomedistance above the top of the side walls. Beyond each of the topportions I4 and defined by a score line I8 is a rib portion I9 whichfolds upon itself at the score line as its portion I6 is folded inwardlyas above described. Thus the inner ends 20' of these folded rib portionsabut each other between the two rib portions H, and the largertriangular parts II of the top portions I4 and these attached ribportions I9 with their abutting ends 20' form a very substantial trusswhich assists in supporting the truss formed by the top portions 9 andtheir rib portions I I. The truss of these portions I4 and I9 is veryclearly shown in Figures 4 and 5, the latter figure also showing thetruss formed by portions 9 and II.

In closing the top portions of the container, the Y portions I4 arefolded inwardly toward each other, the portions 9 are at the same timebent toward each other, one of the fold-over flaps I3 is tucked inbetween the opposite rib portion II and. the rib portions I9, and thenthe other fiap I3 is folded over the multi-ply rib thus formed by theseveral rib portions, and while all are held firmly together, a staple2| is run through them, thus making a permanent closure. Because of thetruss form of the closure portions, the rib is definitely positionedsomewhat above the top of the side 3 walls of the container, and thestapling machine is thereby enabled to place the staple ZI close to thebase of the rib, thus securely holding the closure portions togetheralong that line.

the blank is shown herein, the rib portions IS -are in the form ofdouble oblique parallelograms due to the greater width of the topportions I 4 at their middle zones, and the said top portions I4 are ofgreater combined extent even at their ends than the distance between thesides to which they are attached. Hence, when these top portions arefolded, the abutting ends 20' of the rib portions I9 are forced squarelyinto close contact throughout the extent of said ends 20', and thefolded rib portions I9 are pushed up until their tops align themselveswith each other and with the tops of the rib portions I I so that, whenone of the fold-over flaps I3 is tucked in, the tops of these ribportions I9 will present an unbroken straight line for sealing at thetop of the rib. Thus there is a complete closure of the parts of the ribwhich the truss arrangement supports and retains.

With this double truss construction and the staple positioned low on therib there is practically no springing upwardly of the rib closure whenthe pressure is released after sealing, with the result that the sealeffected by the reheated parafiin or other coating as above described isnot disturbed or broken and a truly leak-proof container is produced.The truss definitely determines the bulge, definitely spaces the closingrib away from the top of the bottle sides, and prevents harmfulreadjustment of closure portions after sealing. A single-serviceone-piece paper .1. =Aself supporting container for fluid subbe securedby- Let stances comprising a body portion and a folded sealing endclosure integral therewith and pro jecting outwardly from the end of thebody, a top portion extending from the upper end of each of two oppositeside walls, the combined extent of said top portions being greater thanthe distance.

separating the side walls from which they extend, whereby said topportions form a truss when folded to bring their free edges together,and top portions extending from the other side walls and folded tosupport the first of said top portions in their truss position, saidlast mentioned top portions underlying the truss formed by the firstmentioned top portions.

2. A self-supporting container for fluid substances comprising a bodyportion and a folded sealing end closure integral therewith andprojecting outwardly from the end of the body, a top portion extendingfrom the upper end of each of two opposite side walls, the combinedextent of said top portions being greater than the distance separatingthe side walls from which they extend, whereby said top portions form atruss when folded to bring their free edges together, and top portionsextending from the other side walls and integrally connected to thefirst said top portions and folded to support the latter in their trussposition, said last mentioned top portions underlying the truss formedby the first mentioned top portions.

3. A paper container including four side walls, a top portion extendingfrom the upper end of each of two opposite side walls, the combinedextent of said top portions being greater than the distance separatingthe side walls from which they extend, whereby said top portions form atruss when folded to bring their free edges together, and a top portionextending from the upper end of each of the other two side walls, thecombined extent of the latter two top portions at their middle zonebeing greater than the distance separating the side walls from whichthey extend and said latter two top portions being folded beneath thefirst mentioned top portions to bring the free ends of their middlezones'together to form a truss to support themselves and to add strengthto the other top portion truss.

4. A paper container comprising'side walls and a closure means, saidclosure means including a top portion extending from the upper end ofeach of two opposite side walls and. each top portion having a ribportion at its free edge, the combined extent of the top portions beinggreater than the distance separating the side walls from which theyextend, whereby said top portions form a truss when folded to bringtheir free edges and the rib portions together, and a top portionextending from the upper ends of each of the other two side walls andeach having a rib portion at its free edge, the combined extent of thelatter top portions at their middle zone being greater than the distanceseparating the side walls from which they extend and said latter two topportions being folded and having their rib portions folded to bring thefree ends of said middle zones together and the folded ends of the ribportions together to form a truss to support themselves and to addstrength to the other top portion truss.

5. A paper container comprising side walls and a closure means, saidclosure means including a top portion extending from the upper end ofeach of two opposite side walls and each top portion having a ribportion at its free edge, the combined extent of the top portions beinggreater than the distance separating the side walls from which theyextend, whereby said top portions form a truss when folded to bringtheir free edges and the rib portions together, and a top portionextending from the upper ends of each of the other two side walls andeach having a rib portion at its free edge, the combined extent of thelatter top portions at the middle zone being greater than the distanceseparating the side walls from which they extend and said latter two topportions being folded and having their rib portions folded to bring thefree ends of said middle zones together and the folded ends of the ribportions together to form a truss to support themselves and to addstrength to the other top portion truss and fold-over flaps and securingmeans for the rib portions.

6. A paper container comprising side walls and end closure means, saidmeans comprising foldable portions and extensions from the foldableportions forming a multi-ply rib, said foldable portions forming trusssupports for themselves and the rib and definitely positioning the ribabove the top of the side walls.

7. A paper container comprising side walls and end closure means, saidmeans comprising foldable portions and extensions from the foldableportions forming a multi-ply rib, said foldable portions forming trusssupports for themselves and the rib and definitely positioning the ribabove the top of the side walls, and holding means for the closurepositioned adjacent the base of the rib.

8. A self-supporting paper container for fluid substances comprising abody portion and a folded end closure portion integral therewith andprojecting outwardly from the end of the body, the body portioncomprising four side wall panels mutually terminating in a plane normalto the container axis. and the end closure portion comprising fourextensions, one from each side wall and each being coextensive in widthwith the side wall to which it is attached, said extensions having theiradjacent edges interconnected and each comprising a plurality ofangularly disposed panels, two opposed extensions being collapsed andhaving corresponding similarly shaped inner panels extending from theside walls to which they are respectively attached toward the centrallongitudinal axis of the container, and being disposed at equal anglesof inclination to said axis, each of said collapsed extensions alsohaving two parallel contacting outer panels extending to said axis andbeing there united by an interconnecting part, and two intermediatepanels, each connecting the lower edge of an outer panel to the adjacentouter edge of the associated lower panel, the four outer panels togethercomprising a central transverse rib with its outer edge disposed in aplane normal to the container axis, with the outer panel interconnectingparts of opposed extensions mutually contacting for a substantialdistance along the axis of the container, and the inner panelscomprising a truss for supporting said rib extending from the side wallto which it is attached to the base of the said rib and another panelembracing the side of said rib, the rib thus formed and supported. beinghighly resistant to externally applied axial forces.

9. A self-supporting paper container for fluid substances comprising abody portion and a folded end closure portion integral therewith and 5projecting outwardly from the end of the body, the body portioncomprising i'our side wall panels mutually terminating in a plane normalto the container axis, and the end closure portion comprising fourextensions, one from each side wall and each being coextensive in widthwith the side wall to which it is attached, said extensions having theiradjacent edges interconnected and each comprising a plurality ofangularly disposed panels, two opposed extensions each comprising aninner panel, two intermediate panels and two outer panels, the outerpanels being parallel, mutually contacting and being interconnected by apart extending longitudinally of the container axes, the similar outerpanel interconnecting parts of said opposed extensions being in mutualcontact for a substantial distance along said axis, the inner panelsbeing similar, extending from the respective container side walls to theaxis thereof, and making similar angles 25 with said axis, said innerpanels therefore cooperating to form a truss supporting theinterconnecting parts of the outer panels, each of the other twoextensions having an inner panel extending from the container side wallto which so it is attached to the outer panel aforesaid and also havinga panel parallel to and engaging two outer panels.

10. A self-supporting paper container for fluid 35 substances comprisinga body portion and a folded end closure portion integral therewith andprojecting outwardly from the end of the body, the body portioncomprising four side wall panels mutually terminating in a plane normalto the container axis, and the end closure portion comprising fourextensions, one from each side wall and each being coextensive in widthwith the side wall to which it is attached, said extensions haying theiradjacent edges interconnected and each comprising a plurality ofangularly disposed panels, two opposed extensions having portions whichmutually abut for a substantial distance along the axis of the containerand inclined triangular panels, the apices of which meet on the axis ofthe container and outwardly of the body portion, said panels comprisinga truss-like support for said portions, the other two extensions havingpanels which laterally confine and support the mutually abuttingportions of the two first mentioned extensions.

11. A self-supporting container for fiuid substances comprising a bodyportion and a folded sealing end closure integral therewith andprojecting outwardly from the end of the body, said 60 end closureembodying folded portions and a rib, the folded portions includingtriangular panels, the apices of which contact at the axis of thecontainer and outwardly of the body portion, said panels spacing andtrussing the rib definitely outwardly from the body.

12. A self-supporting container for fluid substances comprising a bodyportion and a folded sealing end closure integral therewith andprojecting outwardly from the end of the body, said end closureembodying a transversely extending rib and inclined triangular panelshaving their bases attached to opposite sides of the containerrespectively and their apices meeting at the container axis directlybelow the center of the 7 rib. the height of each such panel beinggreater rib comprising tour trapezoidal panels arranged than one-halfthe base thereof. in pairs, the inner ends of said pairs of panels 13. Aself-supporting container for fluid subbeing united by integralconnecting parts, and stances comprising a body portion and a foldedsaid parts mutually contacting with each other 5 sealing end closureintegral therewith and profor a substantial distance along the container5 jecting outwardly from the end of the body, said axis. end closureembodying a transversely extending HENRY T. SCOTT.

